Edit voice over audio file and and add to video.

I have a training video that is 11 minutes long with a voiceover. The voice over has been recorded again but it is two separate files. Both the files will have to be listened to and edited to match the exact voiceover on the current video. You just need to send over the .mp3 version of the voiceover edited. The completed version will be proof checked with the existing video to match the voice and ensure it is sync with the video Here is a zip file which has 1 video, 2 audio files and 1 transcript highlighting the difference between the two audio files and what needs to be cut out from one and added to the other. [login to view URL] file size is 67MB